The correct answer is A) Confederate to federal.
The following options show the two systems of government adopted by the United States in chronological order: Confederate to federal.
The American colonies wrote the Articles of the Confederation, that in a way was the first type of constitution in America. The articles were written in 1777, during the convention in Philadelphia, Pennsylvania, but were ratified by the states on March 1, 1781. The articles considered strong, sovereign states and a weak central government. That is why they had to modify them and in another convention, they approved the United States Constitution, with a federal government ruling the country through three branches: an executive, a legislative, and a judicial.